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Metal numeric keypad with display screen. After a long period of research and development, Keyu has developed a metal number keyboard suitable for language environments in various countries. This product is equipped with a 122 * 32 dot matrix LCD display. It can display Chinese, English, Czech language, etc. Other languages can be customized according […]

In the civil field, mechanical mouse is mainly composed of ball, roller and grating signal sensor. When you drag the mouse, drive the ball to rotate, the ball drives the roller to rotate, installed in the end of the roller grating signal sensor generated photoelectric pulse signal reflects the mouse in the vertical and horizontal […]